<template>
  <transition name="move">
    <div v-show="showFlag" class="food" ref="food">
      <div class="food-content">
        <div class="image-header">
          <img :src="food.image" alt="">
          <div class="back" @click="hide">
            <i class="icon-arrow_lift"></i>
          </div>
        </div>
        <div class="content">
          <h1 class="title">{{food.name}}</h1>
          <div class="detail">
            <span class="sell-count">月售{{food.sellCount}}份</span>
            <span class="rating">好评率{{food.rating}}%</span>
          </div>
          <div class="price">
            <span class="now">￥{{food.price}}</span><span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
          </div>
          <div class="cartcontrol-wrapper">
            <cartcontrol :food="food"></cartcontrol>
          </div>
          <transition name="fade">
            <div @click.stop.prevent="addFirst" class="buy" v-show="!food.count || food.count===0">加入购物车</div>
          </transition>
        </div>
        <split v-show="food.info"></split>
        <div class="info" v-show="food.info">
          <h1 class="title">商品信息</h1>
          <p class="text">{{food.info}}</p>
        </div>
        <split></split>
        <div class="rating">
          <h1 class="title">商品评价</h1>
          <ratingselect :select-type="selectType" :only-content="onlyContent"
                        :desc="desc" :ratings="food.ratings"></ratingselect>
        </div>
      </div>
    </div>
  </transition>
</template>
<style lang="stylus" rel="stylesheet/stylus">
  .food
    position fixed
    left 0
    top 0
    bottom: 48px
    z-index 30
    width 100%
    background #fff
    &.move-enter-active, &.move-leave-active
      transition: all 0.2s linear;
    &.move-enter, &.move-leave-to
      transform translate3D(100%, 0, 0)
    .image-header
      position: relative
      width 100%
      height 0
      padding-top 100%
      img
        position absolute
        top: 0
        left 0
        width 100%
        height 100%
      .back
        position absolute
        top: 10px
        left 0
        .icon-arrow_lift
          display block
          padding 10px
          font-size 20px
          color #fff
    .content
      position relative
      padding 18px
      .title
        line-height 14px
        margin-bottom 8px
        font-size 14px
        font-weight 700
        color rgb(7, 17, 27)
      .detail
        margin-bottom 18px
        height 10px
        line-height 10px
        font-size 0
        .sell-count, .rating
          font-size 10px
          color rgb(147, 153, 159)
        .sell-count
          margin-right 12px
      .price
        font-weight 700px
        line-height 24px
        .now
          margin-right 8px
          font-size 14px
          color rgb(240, 20, 20)
        .old
          text-decoration line-through
          font-size 10px
          color rgb(147, 153, 159)
      .cartcontrol-wrapper
        position absolute
        right 12px
        bottom 12px
      .buy
        position absolute
        right 18px
        bottom 18px
        z-index 10
        height 24px
        line-height 24px
        padding 0 12px
        box-sizing border-box
        border-radius 12px
        font-size 10px
        color #fff
        background rgb(0, 160, 220)
        &.fade-enter-active, &.fade-leave-active
          transition: all 0.2s linear;
        &.fade-enter, &.fade-leave-to
          opacity 0
    .info
      padding 18px
      .title
        line-height 14px
        margin-bottom 6px
        font-size 14px
        color rgb(7, 17, 27)
      .text
        line-height 24px
        padding 0 8px
        font-size 12px
        color rgb(77, 85, 93)
    .rating
      padding-top 18px
      .title
        line-height 14px
        margin-left 18px
        font-size 14px
        color rgb(7, 17, 27)

</style>
<script type="text/ecmascript-6">
  import BScroll from 'better-scroll';
  import cartcontrol from '../cartcontrol/cartcontrol.vue';
  import Vue from 'vue';
  import bus from '../cartcontrol/bus';
  import split from '../split/split.vue';
  import ratingselect from '../ratingselect/ratingselect.vue';

  //  const POSITIVE = 0;
  //  const NEGATIVE = 1;
  const ALL = 2;

  export default {
    props: {
      food: {
        type: Object
      }
    },
    data() {
      return {
        showFlag: false,
        selectType: ALL,
        onlyContent: true,
        desc: {
          all: '全部',
          positive: '推荐',
          negative: '吐槽'
        }
      };
    },
    methods: {
      show() {
        this.showFlag = true;
        this.selectType = ALL;
        this.onlyContent = true;
        this.$nextTick(() => {
          if (!this.scroll) {
            this.scroll = new BScroll(this.$refs.food, {
              click: true
            });
          } else {
            this.scroll.refresh();
          }
        });
      },
      hide() {
        this.showFlag = false;
      },
      addFirst(event) {
        if (!event._constructed) {
          return;
        }
        bus.$emit('cart.add', event.target);
        Vue.set(this.food, 'count', 1);
      }
    },
    components: {
      BScroll,
      cartcontrol,
      split,
      ratingselect
    }
  };
</script>
